Balloon Flower, Astra Double Blue



‘Astra Double Blue’ is known for its intriguing balloon-like flower buds that eventually burst open to form bell-shaped, semi-double blue flowers. Up to three inches across with dark blue veins and white eyes, the flowers are borne singly or in small clusters atop floral stems that persist throughout summer.


Height:  9 Inches

 18 Inches

Sun Exposure: Sun / Partial Shade

Characteristics & Attributes

Key Features
  • Flowering
Foliage Color
  • Green
Flower Color
  • True Blue
Bloom Season
  • Summer
Seasons of Interest
  • Summer
Growth Rate
  • Medium
  • Clumping